Bunsen burner.



(No Model.)

s. MASON.l` BUNSEN'BURNER.

(Application filed Oct. 10, 1896.)

m: Noam: PETERS co, pnoaumo.. wAsHmoToN, D, c.

1 ITED NSTATES PATENT QEEIQE.

SIDNEY IvIAsoN, E PHILADELPHIA] rENNsYLvANIA, AssIeNoE To THE wELsEAoII LIGHT coMPANY, 0E GLOUCESTER CITY, NEw .IEEsEY BUNSEN BURNER.

SPECIFICATION forming part of Lettersjratent No. 654,409, dated July 24, 1900.

Application nea ombefr 16,1896. stanno. 609,113. (Nomaden To all whom, it may concern: Further, the invention consists in various Be it known that I, SIDNEY MASON, a citii novel details of construction whereby the ob- 55 zen of the United States, residing at 'Philaf ject'ot'l the invention is attained and the delphia, in the county of Philadelphia and effectiveness of the device is insured.

State of Pennsylvania, have invented certain The invention is illustrated in the accomnew and useful Improvements in Bunsen panyingdrawings, 'in which- Burners; and I do declare the following to Y Figure 1 is aside elevation of my inven- 6o be a full, clear, and exact description of the tion, the same being shown as applied to a invention, such as will enable others skilled y gas-lixture having an incandescent mantle Io in the art to which it appertains to make and applied thereto. Fig. 2 is a detail view of a use the same, reference being had to the acl modiiied form of connection between the companying drawings, and to the lettersof i parts of the burner-tube, and Fig. 3 is a de- 65 reference marked thereon, which form apart tail view of a modified form of envelop for of this speciiication. the tube. Y

I5 This invention relates to Bunsen burners; In the drawings, A represents the lowerporand it relates more particularly to burners tions of a Bunsen tube, the tube being shown of this kind adapted for use in connection 4as forming part of a burner by which heat 7o with mantles of a fragile nature andwhich from the combustion ot'` gas is brought into are designed to be rendered incandescent by contact with a mantle. The exterior of the zo heat from the burners. portionA of the tube is provided with screw- The primary object of the presentinvention threads designed to engage corresponding is to produce a Bunsen burner so constructed screw-threads b on the inner face of a base 75 as to preventinjury toa fragile mantle carried B, which base forms means of attaching the by the burner by reason of shocks, jars, tremu` r burner to a gas-fixture, and to that end has lons movements, dac. screw-threads b2 in its lower end. Extending With this object in view the vinvention conlaterally from the top of the portionA of theV sists, essentially, of a Bunsen burner having 1 tube are arms a, preferably three or more in 8o interposed between the basel of the tube and number, upon which rests and to which is the upper part thereof an elastic or yielding secured a spring C, the latter forming a supconnection whereby air is admitted between port for the upper portion of the Bunsen tube the parts of the tubefand alsobetween the and the parts cOnnectedfthereWith. parts of the connection and whereby the up- A2 represents the upper portion of the Bun 85 per portion of the burner and theparts consen tube, and to this upper portion are atnected thereto are protected against injury tached by suitable means the mantle D, the

3 5 from shocks, jars, &c. chimney E, surrounding thmantle, and the' Further, the invention` consists of a Bunenvelop F, forming'a chamber from Which air sen burner having its tubemade insections is supplied for mixture with gas in the tube. 9o arranged one above thelother, Vwith a space The upper endof the spring C may be conbetween the parts for the admission of air to nected in any suitable way tothe lower end of 4o the interior of the tube and an elastic or the upper part ofthe Bunsen tube, by which yielding connection between the parts of the the latter and the parts connected thereto will tube, the connection being of a form to perbe held in proper relation to the lower part of 95 mit the passage of air and gas to the point of the tube. One means for accomplishing thisA combustion. will now be described. The lower end of the Further,` the invention consists of a Bunpart Agis externally screw-threaded at a2, and sen burner having its tube made in parts and upon these screw-threads is placed a band as, having a space between the parts fo'r the adhaving internal screwthreads.` The band :on mission of air and a' spring or springs conhas an opening a4, adjacent to which is a setnecting the parts of the tube, the spring or screw a5, passing through the band and entersprings b'eing of a form to permit up-anding the opening. The upper end of the spring' down and lateral movement of the upper C is introduced into the ropening a4 and is separt of the tube and of the parts connected cured in its position by the set-screw, vthus :o5 therewith. securely joining the spring to the band. This bandis preferably composed of some material which is a poor conductor of heat in order that there maybe no danger of the heat of the Bunsen tube being communicated to the spring through the band sufliciently to endanger the temper of the spring.

The envelop F is of a' form to inclose the Bunsen tube and to form a chamber around the same, to which chamber air is admitted and from which air is supplied to the interior of the Bunsen tube to mix with the gas in the tube. The envelop is contracted at its upper end and is slipped over the upper portion A2 of the tube and rests upon and is supported by the band a3. The lower end of the envelop has therein an opening of a size to receive the base B of the burner and to allow considerable lateral movement of the envelop without coming into contact with the base. The space between the lower end of the envelop and the base is sufficient to allow the inlet of air into the chamber for mixture with the gas in the tube to insure perfect combustion of the gas.

The form of the spring C (shown in Fig. l of the drawings) is preferable for some reasons. I nasmuch as it is placed at the point in the tube where air is admitted its convolutions are a short distance apart, forming a free passage for air between them. lAs the entire weight of nearly all the parts of the burner is imposed upon the spring, the latter has a broad base resting on the arms a, givin g an adequate foundation, and as a coil-spring is necessarily longer than any other form of spring occupying the'same amount of space there is more material through which the jars and agitations received upon the base must pass through before being impressed upon the upper portion ofthe burner, resulting in lessening their violence and rendening them harmless to the mantle mounted upon the upper portionof burner.

The form of spring referred to is not essential to the construction, and any form of spring permitting a gentle up-and-down and lateral movement of the upper portion of the burner in response to the movement of the lower portion may be employed or a plurality of springs may be used. For instance, as shown in Fig. 2 of the drawings, any desired number of leaf-springs G may be attached to the band a3 at their upper ends and at their lower ends to the portion A of the tube. The modified form of springs G extend downward and outward from their pointsof attachment to the band to a point g, where they are bent inward tothe places of attachment to the part A of the tube. I

In some situations in which-the burners are used it may be necessary to provide an attachment in the nature of a buffer between the lower part of the envelop and the base B. For this purpose small coil-springs e may be attached at intervals to the lower part of the envelop and to the base B, thus preventing violent striking of the envelop against the base, which, as the mantle and envelop are connected to the same part, might result in injury to the former.

By the construction and arrangement of the parts herein described I provide in a simple inexpensive manner and by means which will not interfere with the perfect working of the Bunsen burner a support for the principal parts of the burner, and particularly of the mantle and chimney,by which agitations, j ars, or tremblings of any kind are either entirely taken up or so modified as to offer no injury to the fragile parts.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A Bunsen burner having its tube made in two parts with a space between them for the admission of air and having interposed between the base of the tube and the upper part thereof an elastic or yielding connection, through openings in which air is admitted and whereby the upper portion of the burner and the parts connected thereto are protected against injury from shocks or jars, substantially as described. Y

2. A Bunsen burner having its tube made in sections arranged one above the other with a space between the parts for the admission of air to the interior of the tube, and an elastic or yielding connection between the parts of the tube, the connection being of a form to permit the passage of air and gas to the point of combustion, substantially as described.

3. A Bunsen burner having its tube made in parts, and havinga space between the parts for the admission of air, and a spring arranged to admit air through the convolutions thereof and connecting the parts of the tube, the spring being of a form to permit up-anddown and lateral movement of the upper part of the tube and of the parts connected thereto, substantially as described.

4. A Bunsen burner having its tube made in parts,and having a space between the parts, and a spiral spring connecting the parts of the tube and through the convolutions of which air is admitted, substantially as described.

5. A Bunsen burner having its tube made in parts,and having a space between the parts, and a spiral spring conical in general contour interposed between and connected to the different parts of the tube and arranged to admit air through its convolutions,substantially as described.

6. A Bunsen burner having its tube made in pa rts,and having a space between the parts, aspring connecting the parts of the tube, and an envelop surrounding the tube and having air-inlet openings, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

SIDNEY MASON.

Witnesses:

J. G. HOPKINS, N. A.' KELLY.

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